Dualtec, twintec etc movement detectors
Dual Technology
Pyronix
Pyronix 15m Dual Tec Anti Mask EN Grade 3
Honeywell
Honeywell Dual Tec DT8016F5 16 x 22m Grade 2
UTC
UTC DD1012 12 m/40 ft Dual Technology Motion sensor, 9 Curtains
Optex
Optex PIR Microwave combination high mount outdoor detector 12m
Siemens/Vanderbilt
Vanderbilt PDM-IXD12T Dual AM detector 9.3 Grade 3
Optex
Optex FLX-S-DT-X8 FlipX Series, PIR
HKC
Guardall
Guardall DT15 Dual Technology Detector
Honeywell
Honeywell DT8016MF5 DUAL TEC Motion Sensor with mirror optics
Honeywell
Honeywell DT8012F5 DUAL TEC Motion Sensor with Pet-Immunity
Scantronic
Scantronic NEW Radio Dual Tech Detector PET Tolerant
Pyronix
Pyronix Enforcer KX12DT Wireless Dualtech PIR